Almost all cnidarians use special cells called _______ at the ends of their tentacles to inject poison into their prey.

Answer:

Bacteria

Explanation:

Because in this situation they are discussing on which organisms are decomposers and they are bacteria.

Answer:

The root of a huge tree causes cracks in a rocky surface.---> biological Weathering.

Part of a cliff breaks and falls due to waves.----> mechanical weathering

Acid rain reacts with calcite present in limestone---> chemical weathering

Explanation:

The root of a huge tree causes cracks in a rocky surface is the example of biological Weathering because in this weathering living organism is involved.  Part of a cliff breaks and falls due to waves of water is the example of mechanical weathering because water enters the small pores of rocks and formed cracks when expands.  Acid rain reacts with calcite present in limestone is a chemical weathering because acid present in rain water is responsible for the degradation and breakdown of rocks.

Here's the matching of the scenarios with the types of weathering:

1. The root of a huge tree causes cracks in a rocky surface - Biological Weathering

2. Part of a cliff breaks and falls due to waves - Mechanical Weathering

3. Acid rain reacts with calcite present in limestone - Chemical Weathering

Biological Weathering: In this scenario, the root of a huge tree causes cracks in a rocky surface. Biological weathering refers to the breakdown of rocks caused by the activities of living organisms. The roots of the tree can exert pressure on the rocky surface as they grow, causing cracks and eventually breaking apart the rock.

Mechanical Weathering: Part of a cliff breaks and falls due to waves. Mechanical weathering involves the physical breakdown of rocks into smaller fragments without changing their chemical composition. In this case, the force of the waves pounding against the cliff causes pieces of the rock to break off and fall.

Chemical Weathering: Acid rain reacts with calcite present in limestone. Chemical weathering involves the breakdown of rocks through chemical reactions. Acid rain, which is rainwater with a low pH due to the presence of acidic compounds, reacts with the calcite (a mineral in limestone) and causes it to dissolve, leading to the erosion and weakening of the limestone.

Each type of weathering plays a role in shaping the Earth's surface over time, and they often work together to break down rocks and minerals into smaller particles.

To know more about Biological Weathering follow the link:

brainly.com/question/4709901

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Answer:analysis

Explanation:

Answer:

Food 'Web'

Explanation:

• A Food Web is a diagram showing a producer ( Grass, Plants, Etc. ) At The Bottom. Then You have the consumers.
• There are 3 common consumers.  Just 'Consumers', Secondary Consumers which eat 'Consumers' .
• Finally, Tertiary Consumers, They are at the top of the food chain. The only thing that would hunt them would be humans.

I Hope This Helps!  Sorry For Being Late.

                                                      - Aslina

Answer:

Water dirt and  sunlight and also soil and rocks

Explanation: